Brane Inflation from Rotation of D4 Brane

TL;DR

This paper proposes a new brane inflation model based on the rotation of D4-branes, which aligns with observations and suggests a more natural inflaton candidate than brane distance.

Contribution

It introduces a novel brane inflation scenario using brane rotation, expanding the theoretical landscape of inflation models in string theory.

Findings

Model satisfies observational constraints across wide parameters

Rotation of branes can serve as a natural inflaton

Offers a new approach to brane inflation theories

Abstract

In this paper, a inflationary model from the rotation of D4-brane is constructed. We show that for a very wide rage of parameter, this model satisfies the observation and find that regarded as inflaton, the rotation of branes may be more nature than the distance between branes. Our model offers a new avenue for brane inflation.